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12 Biology Organisms and Populations - Set No : 15 Question No :4

Question No : 4
               Ecological hierarchy comprises, which of the following sequence     

                a)          Population  Species  Community  Ecosystem  Biosphere          b)          Species  Population  Community  Ecosystem  Biosphere     

                c)          Species  Population  Biosphere  Community  Ecosystem          d)          Species  Population  Biosphere  Ecosystem  Community     

Answer No : 4
     (b)Ecological hierarchy or ecological levels or organisation.Organisation is the arrangement and coordination of small components into larger components in a hierarchy, where each level is formed of components of lower level and itself becomes constituent of still higher levelHierarchy in a organisation from the level of biomolecules to organismic level is called biological hierarchy or biological organisation. The hierarchy in the levels of organisation connected with ecological grouping of organism is called ecological hierarchy or ecological level of organisationThere are no sharp lines or breeks in the functional sense amongst various level of ecological hierarchy as the same individual is a components of population, biological community as well as ecosystem     

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